In 1947, Puerto Rican nationalists planned to assassinate President Harry Truman while he was at Blair House in Washington. Two shooters approached Blair House and got into a gunfight with police and Secret Service guards posted at the door. Truman was inside and not hurt, but he heard and perhaps saw the gunfight. Much later, a flashbulb on a press photographer's camera exploded while Truman was speaking, and several people were alarmed and ready to take cover. Truman remained calm, smiled and said that an exploding flashbulb didn't bother him as he had already been shot at by people with real bullets.